US1398100A - Water-rigging for stoping-drills - Google Patents

Description

W. H. JOYCE.

WATER RIGGING FOR STOPING DRILLS.

APPUCATION FILED NOV. 5, l9l9- Patented Nov. 22, 1921.

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WATER meme FOR STOPING DRH LS.

APPLICATION F NOV 5 1919 1,398, 1 O0. Patented Nov. 22, 1921.

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A TTORNEYS UNITED STATES PATENT OFFICE.

WATER-RIGGING r012. STOPING-DRILLS.

Specification of Letters Yatent.

Patented Nov. 22, 1921.

Application filed November 5, 1919. Serial No. 335,789.

To all whom it may concern:

Be it known that I, \VILLIAM HENRY JOYCE, a citizen of the United States, and a resident of Leadville, in the county of Lake and State of Colorado, have invented certain new and useful Improvements in Water- Rigging for stoping-Drills, of which the following is a specification.

My present invention relates generally to drills and more particularly to mining drills for instance, coal drills where the rapid accumulation of dust has a decided tendency to clog the action of the drill, my object being the provision of. a simple, convenient and inexpensive water rigging, by means of which a column or stream of water may be injected directly into a drill hole against the drill bit in action, and a further object is the provision of a water rigging which may be readily and quickly adapted to stoping drills.

For the above purpose, my invention proposes a tubular nozzle support whose hollow body is formed to telescope the chuck or front head of a stoping drill, one end of this tubular supporting member being entirely open and the other end having a reduced opening for the reception of a drill shank. At its last mentioned end the supporting member carries a rigid though interchangeable nozzle as well as a water supply connection arranged in communication with said nozzle and while the supporting member as a whole is secured to the chuck or front head of the drill, this connection is effected by a set screw, and the support may thus be adjusted around the drill shank, as may be desired.

The details of the above features as well as of the fluid supply thereto will be apparent from the accompanying drawings illustrating my present invention and forming a part of this specification. In these drawings,

Figure 1 is an elevation showing the practical application of my invention,

Fig. 2 is a top plan view of the tubular support and its parts removed,

Fig. 3 is a vertical longitudinal section therethrough.

Referring now to these figures, I have indicated generally at 10 in Fig. 1 a stoping drill of the type to which my invention is applied, its chuck or front head being indicated at 11 and being as well known of cylindrical form adapting the same to the ready reception of the hollow body 12 of my tubular supporting member. A set screw 13 is used to secure the tubular support in place by virtue of its clamping engagement with the chuck or front head, one end of the tubular support 12 being entirely open to permit it to slip down upon the chuck or front head.

The other end of the tubular support 12 has a reduced opening 14 through which the shank 15 of a drill projects, and at one side of-its opening 14 it has a recess 16 communicating with a lateral internally threaded inlet 17 and a vertical slightly inclined internally threaded outlet 18 into the latter of which a normally rigid though interchangeable nozzle 19 is mounted. This noz zle is in the form of an axially bored plug having a squared outer end to facilitate screwing of the same into and out of the outlet 18.

.The inlet 17 receives the externally threaded and reduced end of a connecting nipple 20 to which one end of the fluid supply pipe 21, preferably a flexible pipe is secured. The supply pipe 21 leads from a fluid container 22 and preferably has a valve at 23 intermediate its ends. The fluid receptacle or tank 22 also has an air-pipe 24 which leads thereto for the purpose of forcing the liquid out of the receptacle or tank and through the pipe 21 to the nozzle 19, when the valve 23 is open.

In this Way, it is obvious that I provide a simple, convenient apparatus which may be readily placed in and removed from effective position, which may be readily adjusted, and which will operate to deliver a stream of water into the opening in which the drill bit is working and against the drill bit, both for the purpose of cooling the bit and Washing the dust out of the opening around the bit.

It is furthermore obvious that while normally positioned and readily held in connection with its support the nozzle may be readily removed for purposes of substitution in order that plugs having large and small bores may be utilized to regulate the size of the stream of water delivered therefrom.

I claim:-

The combination with a drill including a cylinder, of a cylindrical support telescoping and adjustably secured to the front head of end and a recess adjacent to said end provided with an internallythreaded inlet and an internally threaded outlet the latter inclined with respect to the longitudinal axis of the cylinder, an axially bored nozzle plug screwing into the outlet, a delivery pipe hav- 10 ing a nipple screwing into the inlet and fluid supply means with which the said pipe is in communication.

WILLIAM HENRY JOYCE.

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